CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-86134

A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the management daemon by sending a specially request to the login interface, resulting in a denial of service.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.004

EPSS Ranking 29.6%

CVSS Severity

CVSS v3 Score 7.5

References

https://psirt.watchguard.com/CVE-2026-86134

Products affected by CVE-2026-86134

Watchguard » Fireware » Version: 12.0.0

cpe:2.3:o:watchguard:fireware:12.0.0
Watchguard » Fireware » Version: 12.0.1

cpe:2.3:o:watchguard:fireware:12.0.1
Watchguard » Fireware » Version: 12.0.2

cpe:2.3:o:watchguard:fireware:12.0.2
Watchguard » Fireware » Version: 12.1

cpe:2.3:o:watchguard:fireware:12.1
Watchguard » Fireware » Version: 12.1.1

cpe:2.3:o:watchguard:fireware:12.1.1
Watchguard » Fireware » Version: 12.1.3

cpe:2.3:o:watchguard:fireware:12.1.3
Watchguard » Fireware » Version: 12.1.4

cpe:2.3:o:watchguard:fireware:12.1.4
Watchguard » Fireware » Version: 12.12

cpe:2.3:o:watchguard:fireware:12.12
Watchguard » Fireware » Version: 12.12.1

cpe:2.3:o:watchguard:fireware:12.12.1
Watchguard » Fireware » Version: 12.2.0

cpe:2.3:o:watchguard:fireware:12.2.0
Watchguard » Fireware » Version: 12.2.1

cpe:2.3:o:watchguard:fireware:12.2.1
Watchguard » Fireware » Version: 12.3

cpe:2.3:o:watchguard:fireware:12.3
Watchguard » Fireware » Version: 12.3.1

cpe:2.3:o:watchguard:fireware:12.3.1
Watchguard » Fireware » Version: 12.4

cpe:2.3:o:watchguard:fireware:12.4
Watchguard » Fireware » Version: 12.4.1

cpe:2.3:o:watchguard:fireware:12.4.1
Watchguard » Fireware » Version: 12.5

cpe:2.3:o:watchguard:fireware:12.5
Watchguard » Fireware » Version: 12.5.1

cpe:2.3:o:watchguard:fireware:12.5.1
Watchguard » Fireware » Version: 12.5.10

cpe:2.3:o:watchguard:fireware:12.5.10
Watchguard » Fireware » Version: 12.5.11

cpe:2.3:o:watchguard:fireware:12.5.11
Watchguard » Fireware » Version: 12.5.12

cpe:2.3:o:watchguard:fireware:12.5.12
Watchguard » Fireware » Version: 12.5.13

cpe:2.3:o:watchguard:fireware:12.5.13
Watchguard » Fireware » Version: 12.5.14

cpe:2.3:o:watchguard:fireware:12.5.14
Watchguard » Fireware » Version: 12.5.15

cpe:2.3:o:watchguard:fireware:12.5.15
Watchguard » Fireware » Version: 12.5.17

cpe:2.3:o:watchguard:fireware:12.5.17
Watchguard » Fireware » Version: 12.5.18

cpe:2.3:o:watchguard:fireware:12.5.18
Watchguard » Fireware » Version: 12.5.19

cpe:2.3:o:watchguard:fireware:12.5.19
Watchguard » Fireware » Version: 12.5.2

cpe:2.3:o:watchguard:fireware:12.5.2
Watchguard » Fireware » Version: 12.5.3

cpe:2.3:o:watchguard:fireware:12.5.3
Watchguard » Fireware » Version: 12.5.4

cpe:2.3:o:watchguard:fireware:12.5.4
Watchguard » Fireware » Version: 12.5.5

cpe:2.3:o:watchguard:fireware:12.5.5
Watchguard » Fireware » Version: 12.5.6

cpe:2.3:o:watchguard:fireware:12.5.6
Watchguard » Fireware » Version: 12.5.7

cpe:2.3:o:watchguard:fireware:12.5.7
Watchguard » Fireware » Version: 12.5.8

cpe:2.3:o:watchguard:fireware:12.5.8
Watchguard » Fireware » Version: 12.5.9

cpe:2.3:o:watchguard:fireware:12.5.9
Watchguard » Fireware » Version: 2025.1

cpe:2.3:o:watchguard:fireware:2025.1
Watchguard » Fireware » Version: 2025.1.1

cpe:2.3:o:watchguard:fireware:2025.1.1
Watchguard » Fireware » Version: 2025.1.2

cpe:2.3:o:watchguard:fireware:2025.1.2
Watchguard » Fireware » Version: 2025.1.3

cpe:2.3:o:watchguard:fireware:2025.1.3
Watchguard » Fireware » Version: 2025.1.4

cpe:2.3:o:watchguard:fireware:2025.1.4
Watchguard » Fireware » Version: 2026.1

cpe:2.3:o:watchguard:fireware:2026.1
Watchguard » Fireware » Version: 2026.1.1

cpe:2.3:o:watchguard:fireware:2026.1.1
Watchguard » Fireware » Version: 2026.1.2

cpe:2.3:o:watchguard:fireware:2026.1.2
Watchguard » Fireware » Version: 2026.2

cpe:2.3:o:watchguard:fireware:2026.2
Watchguard » Fireware » Version: 2026.2.1

cpe:2.3:o:watchguard:fireware:2026.2.1
Watchguard » Fireware » Version: 2026.3

cpe:2.3:o:watchguard:fireware:2026.3

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-86134

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